Learn on PengiCalifornia myWorld Interactive, Grade 4Chapter 1: California's Geography

Lesson 2: California's Regions

In this Grade 4 lesson from California myWorld Interactive, students learn to identify and describe California's four major natural regions — the mountains, coast, desert, and Central Valley — and explore how each region's landforms, climate, plants, and animals shape the lives of the people living there. Students build key vocabulary including region, population, humid, wildlife, agriculture, and tourism while examining how geographic features like the Sierra Nevada snowpack support the state's economy. The lesson connects physical geography to human activity, helping students understand why population, industry, and land use vary across the state.

Section 1

California's Regions: Where People Settled

Key Idea

There are four main natural regions in California: the mountains, valleys, deserts, and the coast. When people first came to settle California, they looked for the best places to build their homes and start new lives.

Many settlers chose the coastal region. It offered mild weather and easy access to the ocean for fishing and travel. The steep mountains and hot, dry deserts were much harder places to live. Because of these early choices, most of California's largest cities grew along the coast.

Section 2

Californians Changed the Land to Use Its Resources

Key Idea

As people settled and worked in California's different regions, they began to change the environment to meet their needs. They saw the land and its features as natural resources that could be used for farming, mining, and building communities.

To make farming possible in dry areas, settlers developed systems of irrigation, building canals and dams to move water from rivers to their fields. In the mountains, miners rerouted streams to search for gold, and forests were cleared to make way for growing cities and towns. These actions reshaped California's landscape, allowing the state's economy and population to grow.

Section 3

People Protected California's Nature

Key Idea

As people changed California's land for farms and cities, some grew concerned. They believed the state's amazing natural landscapes should be protected from too much development.

One famous person was the photographer Ansel Adams. His powerful photographs of places like Yosemite National Park showed the beauty of nature.

Book overview

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Chapter 1: California's Geography

  1. Lesson 1

    Lesson 1: Where Is California?

  2. Lesson 2Current

    Lesson 2: California's Regions

  3. Lesson 3

    Lesson 3: California's Human Geography

Lesson overview

Expand to review the lesson summary and core properties.

Expand

Section 1

California's Regions: Where People Settled

Key Idea

There are four main natural regions in California: the mountains, valleys, deserts, and the coast. When people first came to settle California, they looked for the best places to build their homes and start new lives.

Many settlers chose the coastal region. It offered mild weather and easy access to the ocean for fishing and travel. The steep mountains and hot, dry deserts were much harder places to live. Because of these early choices, most of California's largest cities grew along the coast.

Section 2

Californians Changed the Land to Use Its Resources

Key Idea

As people settled and worked in California's different regions, they began to change the environment to meet their needs. They saw the land and its features as natural resources that could be used for farming, mining, and building communities.

To make farming possible in dry areas, settlers developed systems of irrigation, building canals and dams to move water from rivers to their fields. In the mountains, miners rerouted streams to search for gold, and forests were cleared to make way for growing cities and towns. These actions reshaped California's landscape, allowing the state's economy and population to grow.

Section 3

People Protected California's Nature

Key Idea

As people changed California's land for farms and cities, some grew concerned. They believed the state's amazing natural landscapes should be protected from too much development.

One famous person was the photographer Ansel Adams. His powerful photographs of places like Yosemite National Park showed the beauty of nature.

Book overview

Jump across lessons in the current chapter without opening the full course modal.

Continue this chapter

Chapter 1: California's Geography

  1. Lesson 1

    Lesson 1: Where Is California?

  2. Lesson 2Current

    Lesson 2: California's Regions

  3. Lesson 3

    Lesson 3: California's Human Geography